Research of the influence of the operating parameters of the process of heat treatment of the wood of ash on the form stability of the combined furniture boards

M.M. Ilkiv; V.R. Solonynka; S.A. Hrytsak; Ya.M. Bilyy

doi:10.36930/42194507

Authors

M.M. Ilkiv
V.R. Solonynka
S.A. Hrytsak
Ya.M. Bilyy

DOI:

https://doi.org/10.36930/42194507

Keywords:

furniture board, thermowood, heat treatment, vacuum-conductive technology.

Abstract

It has been established that the process of thermal modification of wood is an environmentally friendly way of protecting wood. Thermal modification of wood also makes it possible to significantly improve the appearance of wood of low-grade species by changing their color. Method and the results of experimental research of form stability of the combined furniture boards. The influence of mode parameters of the process of heat treatment of wood on the shape resistance of the received boards is determined. The mathematical and graphical dependence of the form stability of the combined furniture boards on the operating parameters of the process of heat treatment of the wood of ash were obtained. It is substantiated that the flatness of furniture panels is greatly influenced by the technological accuracy of the equipment used in the final calibration of finished panels. It has been investigated that the temperature of the thermal modification process is more influenced by the plane of the combined furniture panel than its duration. It is established that the results of experimental studies of the flatness of combined furniture boards, almost all of them do not meet the requirements of the standard. Only combination furniture panels made from a combination of ash wood sections obtained at a modification temperature of 190 ° C and treatment times of 4 and 10 hours with sections of untreated wood meet the requirements of the standard. The deviations from the flatness of the experimental shield data are 0.29 and 0.34 mm, respectively. The justification is made that the unsatisfactory results can be explained by the fact that the individual parts of which the combined shield consists of react differently with the humidity of the environment. It has been found that the combined furniture panels, the sections of which are treated with temperature t = 220 ° C, have the ability to retain their geometric dimensions and shape better than when treated with temperature t = 160 ° C or without treatment. It is recommended to use the results obtained during student preparation and in production conditions to obtain quality products that meet the requirements of the standards.

References

Gayda S.V. (2013). Розроблення технології виробництва паливних гранул на основі енергетичного потенціалу вживаної деревини [Development of technology for the production of fuel pellets based on the energy potential of used wood]. Scientific Bulletin of UNFU 23.14:83-93. (in Ukrainian).

Gayda S.V. (2007). Проблема деревної сировини у Європі та Україні / Problema derevnoyi syrovyny u Yevropi ta Ukrayini [А problem of arboreal raw material is in Europe and Ukraine]. Forestry, Forest, Paper and Woodworking Industry 33:55-63 (in Ukrainian).

Gayda S.V. (2011). Recycled of post-consumer wood is for the production of particleboard in Ukraine / Proceedings of the XXI International symposium Adhesives in Woodworking Industry (Slovakia, Zvolen Juve 29 – July 01. 2011). TU Zvolen. – P. 108-121.

Gayda S.V. (2007). Матеріали для виготовлення виробів з деревини / Навч. посібн. – Львів: ВМС. – 160 с. (in Ukrainian).

Gayda S.V. (2013). Techniques for utilization of post-consumer wood in the production of fuel pellets and briquettes. Proceedings of the XXI International symposium Adhesives in Woodworking Industry (Slo-vakia, Zvolen Juve 23-26. 2013). TU Zvolen, 119-130.

Gayda S.V. (2015). Investigation of physical and mechanical properties of post-consumer wood. Actual problems of forest complex 43:175-179, (in Russian).

Gayda S.V. (2015). Tekhnologії і fіziko-mekhanіchnі vlastivostі stolyarnikh plit іz vzhivanoї derevini [Technology and physical and mechanical properties blockboard made of post-consumer wood]. Technical ser-vice of agriculture, forestry and transport systems 3(1).145-152, (in Ukrainian).

Gayda S.V. (2016). A investigation of form of stability of variously designed blockboards made of post-consumer wood. ProLigno 12(1).22-31.

Gayda S.V. (2016). Formoustoychivost' stolyarnykh plit iz vtorichno ispol'zuemoy drevesin [A form of stability of blockboards made of post-consumer wood]. Actual problems of forest complex 46:148-153, (in Rus-sian).

Gayda S.V. (2016). Research on physical and mechanical characteristics of front blockboards made from post-consumer wood [Дослідження фізико-механічних характеристик фасадних столярних плит із вживаної деревини]. Forestry, Forest, Paper and Woodworking Industry 42: 33-50. doi: https://doi.org/10.36930/42164206

Gayda S.V. (2017). Tekhnolohyya y svoystva mebelnoho shchyta yz vtorychno yspolzuemoy drevesyny [A technology and properties of furniture board (fb) made of post-consumer wood]. Actual problems of forest complex 48:34-38 (in Russian).

Gayda S.V. (2017). Використання нечітких експертних систем для підтримки прийняття рішень в процесі сортування вживаної деревини / Vykorystannya nechitkykh ekspertnykh system dlya pidtrymky pryynyattya rishenʹ v protsesi sortuvannya vzhyvanoyi derevyny [Using fuzzy expert systems for decision sup-port in the process of post-consumer wood sorting]. Forestry, Forest, Paper and Woodworking Industry 43:5-20 (in Ukrainian). doi: https://doi.org/10.36930/42174301

Gayda S.V. (2017). Комплексні дослідження зміни пружних властивостей вживаної деревини ялиці з віком / Kompleksni doslidzhennya zminy pruzhnykh vlastyvostey vzhyvanoyi derevyny yalytsi z vikom [The complex studies on the change of elastic properties of post-consumer fir wood with age]. Forestry, Forest, Pa-per and Woodworking Industry 43:58-72 (in Ukrainian). doi: https://doi.org/10.36930/42174308

Gayda S.V. (2018). A investigation and analysis of characteristics of solid furniture boards made of post-consumer wood. Forestry, Forest, Paper and Woodworking Industry, 44, 15-25. https://doi.org/10.36930/42184402 (in Ukrainian).

Gayda S.V. (2018). Strength of combined blockboard made of post-consumer wood (PCW). Bulletin of KhNTUA 197:3-9, (in Ukrainian).

Gayda S.V. (2018). Дослідження та аналіз характеристик щитових конструкцій із вживаної дере-вини / Doslidzhennya ta analiz kharakterystyk shchytovykh konstruktsiy iz vzhyvanoyi derevyny [A investigation and analysis of characteristics of solid furniture boards made of post-consumer wood]. Forestry, Forest, Paper and Woodworking Industry 44:14-24 (in Ukrainian). doi: https://doi.org/10.36930/42184402

Gayda S.V. (2018). Технологія МДФ-фасадів / Tekhnolohiyi MDF-Fasadiv [MDF Facade Technolo-gies]. Forestry, Forest, Paper and Woodworking Industry 44:70-83 (in Ukrainian). doi: https://doi.org/10.36930/42184410

Gayda S.V. (2019). Naukovo-tekhnichni osnovy vykorystannya vzhyvanoyi derevyny v derevoobrobtsi [Scientific and technical basis of post-consumer wood use in woodworking]: dissertation of the Doctor of Technical Sciences, specialty 05.23.06 – woodworking technology, furniture making and wood products manufacturing. – Lviv: Ukrainian National Forestry University. – 465 p., (in Ukrainian).

Gayda S.V. (2019). Scientific and technical basis of the use of used wood in woodworking: thesis of the Doctor of Technical Sciences in the specialty 05.23. – Lviv: UNFU. – 465 (in Ukrainian).

Gayda S.V. Kiyko O.A. (2018). Formostiykist yak kryteriy yakosti stolyarnykh plyt iz vzhyvanoyi derevyny [Shape stability as a quality criterion for PCW-made blockboards]. Scientific Works of the Forestry Academy of Sciences of Ukraine 17:185-192 (in Ukrainian).

Gayda S.V., Bilyy Ya.M. (2016). The investigation of the shape stability of glued panels made of post-consumer wood. Forestry, Forest, Paper and Woodworking Industry, 42, 69-79. https://doi.org/10.36930/42164211 (in Ukrainian).

Gayda S.V., Dyak T.P. (2011). The analysis of economic efficiency of post-consumer wood use for par-ticleboard manufacture for LLC Swisspan Limited // Forestry, Forest, Paper and Woodworking Industry 37.2:129-136. doi: https://doi.org/10.36930/421137221

Gayda S.V., Maksimiv V.M., Kiyko O.A., Ferenc O.B. (2013). Залишки деревини та деревина після споживання. Класифікація. Терміни та визначення [Wood residues and post-consumer wood. Classification. Terms and definitions] / Agreement No. 08.24-11-1: draft international standard ISO. – Lviv: NLTU of Ukraine – 53 p. (in Ukrainian).

Gayda S.V., Kiyko O.A. (2013). Технология очистки вторично используемой древесины иглофре-зерными станками [The technology of cleaning recycled wood with needle milling machines] // Actual prob-lems and prospects of the development of LPK: materials II NTK., September 9-11, 2013 – Kostroma. – P. 36-39. (in Russian).

Gayda S.V. (2013). The technological solutions for recycling of post-consumer wood. Proceedings of I International Interdisciplinary Scientific Conference Formation of stable outlook as the basis of sustainable development (Ukraine, Lviv, 14-16 March 2013) UNFU: Lviv, 5-11.

Gayda S.V., Kiyko O.A. (2018). Shape stability as a quality criterion for PCW-made blockboards. Pro-ceedings of the Forestry Academy of Sciences of Ukraine, 17, 185-192. https://doi.org/10.15421/411834 (in Ukrainian)

Gayda S.V., Ya.M. Bilyy (2016). Дослідження формостійкості клеєних щитів із вживаної дереви-ни / Doslidzhennya formostiykosti kleyenykh shchytiv iz vzhyvanoyi derevyny [The investigation of the shape stability of glued panels made of post-consumer wood]. Forestry, Forest, Paper and Woodworking Industry 42: 69-79 (in Ukrainian). doi: https://doi.org/10.36930/42164211

GOST 6449.3:1982. Izdeliya iz drevesiny i drevesnykh materialov. Dopuski formy i raspolozheniya poverkhnostey [Products of wood and wooden materials. Tolerances of form and arrangement of surfaces]. Moskow: Publishing house of standards, (in Russian).

Huber Yu.M., Humenyuk Zh.Ya., Ilkiv М.M. (2010). Eksperymentalni doslidzhennya zminy fizyko-mekhanichnykh vlastyvostey derevyny v protsesi vakuumno-konduktyvnoho termichnoho obroblennya [Experimental investigation of physicals and mechanicals properties change the wood of the vacuumcontact thermal process]. Scientific Bulletin of UNFU 22(2). 92-99 (in Ukrainian).

Ilkiv М.M. Solonynka V.R., Humenyuk Zh.Ya., Huber Yu.M. (2017). Doslidzhennya mitsnosti kleyevykh zyednan termoderevyny yasena, otrymanoyi za tekhnolohiyeyu vakuumno-konduktyvnoho termichnoho obroblennya [Theresearch of the strength of ash thermowood adhesivejoints treated by vacuum-conductive thermal processing]. Scientific Bulletin of UNFU 27(3). 136-139 (in Ukrainian).

International ThermoWood Association (2003). – ThermoWood Handbook / International ThermoWood Association. – Helsinki, Finland. – 66 p.